EP3134185B1 - Sonnenschutzzusammensetzungen - Google Patents

Sonnenschutzzusammensetzungen Download PDF

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Publication number
EP3134185B1
EP3134185B1 EP15782509.2A EP15782509A EP3134185B1 EP 3134185 B1 EP3134185 B1 EP 3134185B1 EP 15782509 A EP15782509 A EP 15782509A EP 3134185 B1 EP3134185 B1 EP 3134185B1
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EP
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Prior art keywords
composition
nylon
particles
silica
composition according
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EP15782509.2A
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English (en)
French (fr)
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EP3134185A1 (de
EP3134185A4 (de
Inventor
Juliana FANIZZA
Ashley L. Howell
William E. Mcnamara
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Avon Products Inc
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Avon Products Inc
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/88—Polyamides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A61K8/025—Explicitly spheroidal or spherical shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A61K8/0279—Porous; Hollow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/23—Sulfur; Selenium; Tellurium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/35—Ketones, e.g. benzophenone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/26—Optical properties
    • A61K2800/262—Transparent; Translucent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/42—Colour properties
    • A61K2800/43—Pigments; Dyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/54—Polymers characterized by specific structures/properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59—Mixtures
    • A61K2800/591—Mixtures of compounds not provided for by any of the codes A61K2800/592 - A61K2800/596
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/61—Surface treated
    • A61K2800/614—By macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/61—Surface treated
    • A61K2800/62—Coated
    • A61K2800/624—Coated by macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/65—Characterized by the composition of the particulate/core
    • A61K2800/652—The particulate/core comprising organic material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/60—Particulates further characterized by their structure or composition
    • A61K2800/65—Characterized by the composition of the particulate/core
    • A61K2800/654—The particulate/core comprising macromolecular material

Definitions

  • the invention relates generally to compositions and methods for protecting human integuments against damage from ultraviolet (UV) rays. More specifically, the invention relates to the use of a composition that boosts the sun protection factor (SPF) of an organic sunscreen.
  • SPDF sun protection factor
  • Typical product formulations are lotions, sprays, creams, ointments, or gels containing chemical and/or physical barriers to ultraviolet transmission. These vary considerably in their abilities to protect the skin against the physical and biochemical effects of UV radiation.
  • Database GNPD Online), Mintel; March 2010, "Fresh Powder UV Foundation”, Database accession no. 1333672, XP002773642 discloses a composition comprising an organic sunscreen and an SPF-boosting composition comprising (i) nylon particles, (ii) silica particles and (iii) barium sulfate particles.
  • WO 2012/104161 A1 discloses a composition comprising spherical particles chosen from silica and nylon and further comprising an organic UV-screening agent. Furthermore, US 6 210 658 B1 discloses a composition comprising barium sulfate for stabilizing and increasing the SPF factor of organic sunscreens.
  • compositions according to the invention advantageously provide high diffuse transmittance which contributes to a more natural appearance on the skin and also serves to blur fine lines and blemishes, contributing to an overall improvement in the appearance of human skin.
  • silica particulate Another component of the present invention is a silica particulate.
  • Silica particles may range in average size from about 1 to about 100 microns, or from about 1 to about 40 microns, or from about 5 to about 15 microns. In one embodiment the silica particles have a size of about 12 microns. In one embodiment the silica particles are spherical silica particles.
  • One suitable spherical silica particulate material is MSS-500W from Kobo Products.
  • the silica particles may be optionally surface treated to increase oil and/or water repellency or to improve dispersion in the vehicle.
  • alumina particles such as spherical alumina particles may be used in place of some or all of the silica particles.
  • compositions are free of alumina particles or are substantially free of alumina particles by which is meant that the composition contains less than 1% by weight, or less than 0.5% by weight, or less than 0.25% by weight, or less than 0.1% by weight of alumina particles.
  • barium sulfate in particulate form.
  • barium sulfate particles may be synthetically produced. Barium sulfate particles may be insoluble in water or organic solvents, resistant to acids and alkali, and color neutral due to their refractive index.
  • the average particle size of barium sulfate particles is greater than 0.1 micron, typically greater than 0.2 micron, more typically greater than 0.5 micron.
  • the median particle size of barium sulfate particles is from about 0.5 to about 40 microns, or from about 0.75 to about 25 microns, or from about 1 to about 10 microns, or about 3 microns. Examples of suitable barium sulfate particles are "USP Barium Sulfate for Formulation" from Mallinckrodt Inc or "Blanc Fixe XR-HN" from Sachtleben Chemie GmbH.
  • compositions of the invention typically comprise one or more organic sunscreens.
  • organic sunscreens may include, but are not limited to, water soluble sunscreens (such as Eusolex 232); oil soluble sunscreens (such as octyl methoxycinnamate); and other organic sunscreens (such as camphor derivatives, cinnamates, salicylates ( e .
  • octyl salicylate octisalate
  • homomenthyl salicylate homomenthyl salicylate (homosalate)
  • benzophenones paraaminobenzoic acid (PABA), PABA derivatives, including octyl dimethyl PABA and ethyl PABA, diphenylacrylate derivatives, and dibenzoylmethane derivatives such as butylmethoxy dibenzoylmethane (avobenzone), benzophenone-3 (oxybenzone), dioxybenzone, menthyl anthranilate, , octocrylene, drometrizole trisiloxane, 4-methyl benzilidene camphor, octyl triazone, triazines, including hydroxy methylphenyl benzotriazole, methylene bisbenzotriazoyl-tetramethylbutylphenol, bis-ethylhexyloxyphenol methoxyphenol triazin
  • compositions of the invention may optionally comprise one or more colorants.
  • Suitable colorants include dyes, pigments, lakes and particulate fillers.
  • the composition includes from about 0.1% to about 10% by weight of a pigment, such as an inorganic oxide, including metal oxides such as iron oxide, titanium dioxide, zinc oxide, and the like.
  • Exemplary inorganic pigments include, but are not limited to, inorganic oxides and hydroxides such as magnesium oxide, magnesium hydroxide, calcium oxide, calcium hydroxides, aluminum oxide, aluminum hydroxide, iron oxides ( ⁇ -Fe 2 O 3 , ⁇ -Fe 2 O 3 , Fe 3 O 4 , FeO) and iron hydroxides including red iron oxide, yellow iron oxide and black iron oxide, titanium dioxide, titanium lower oxides, zirconium oxides, chromium oxides, chromium hydroxides, manganese oxides, manganese hydroxides, cobalt oxides, cobalt hydroxides, cerium oxides, cerium hydroxides, nickel oxides, nickel hydroxides, zinc oxides and zinc hydroxides and composite oxides and composite hydroxides such as iron titanate, cobalt titanate and cobalt aluminate and the like.
  • inorganic oxides and hydroxides such as magnesium oxide, magnesium hydroxide, calcium oxide, calcium hydroxides, aluminum oxide, aluminum hydroxide,
  • Additional exemplary color additives are lakes including, for example: D&C Red No. 19 (e.g., CI 45170, CI 73360 or CI 45430); D&C Red No. 9 (CI 15585); D&C Red No. 21 (CI 45380); D&C Orange No. 4 (CI 15510); D&C Orange No. 5 (CI 45370); D&C Red No. 27 (CI 45410); D&C Red No. 13 (CI 15630); D&C Red No. 7 (CI 15850:1); D&C Red No. 6 (CI 15850:2); D&C Yellow No. 5 (CI 19140); D&C Red No. 36 (CI 12085); D&C Orange No. 10 (CI 45475); D&C Yellow No. 19 (CI 15985); FD&C Red #40 (CI# 16035); FD&C Blue #1 (CI# 42090); FD&C Yellow #5 (CI# 19140); or any combinations thereof.
  • D&C Red No. 19 e.g.,
  • Suitable fillers include without limitation silica, surface treated silica, talc, zinc stearate, mica, kaolin, nylon particles or powders such as Orgasol®, polyethylene particles or powder, PMMA powder, Teflon®, polymeric beads or powders, including copolymer microspheres such as Expancel® (Nobel Industries), Polytrap® (Dow Corning) and silicone resin microbeads (Tospearl® from Momentive) or silicone elastomeric particles, and the like.
  • Additional pigment/powder fillers include, but are not limited to, inorganic powders such as gums, chalk, Fuller's earth, kaolin, sericite, muscovite, phlogopite, synthetic mica, lepidolite, biotite, lithia mica, vermiculite, aluminum silicate, starch, smectite clays, alkyl and/or trialkyl aryl ammonium smectites, chemically modified magnesium aluminum silicate, organically modified montmorillonite clay, hydrated aluminum silicate, fumed aluminum starch octenyl succinate barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica alumina, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorine apatite, hydroxyapatite, ceramic powder, metallic soap (zinc stea
  • the amount and type of the additional colorants and light diffusers used will vary depending upon the nature of the final product and the desired intensity of color; generally, however, the amount of such additional colorants typically will be about 0.01 wt % to about 75 wt %, and more typically from about 0.25 wt % to about 10 wt % or even 50 wt %, by weight of the total composition, depending on the nature of the final cosmetic.
  • An optical diffuser is a particle that changes the surface optometrics of skin, resulting in a visual blurring and softening of, for example, lines and wrinkles.
  • optical diffusers that can be used in the present invention include, but are not limited to, boron nitride, mica, nylon, polymethylmethacrylate (PMMA), polyurethane powder, sericite, silica, silicone powder, talc, Teflon, titanium dioxide, zinc oxide, titania fibers, polyamide-6 powders or any mixtures thereof.
  • the optical diffuser may be present from about 0.01 wt % to about 20 wt % of the total weight of the composition.
  • the pigments, lakes, and/or fillers may be surface treated.
  • the surface treatment may for example, make the particles more hydrophobic or more dispersible in a vehicle.
  • the surface of the particles may, for example, be covalently or ionically bound to an organic molecule or silicon-based molecule or may be adsorbed thereto, or the particle may be physically coated with a layer of material.
  • the cosmetic compositions of the invention may optionally include one or more agents that provide or enhance shine.
  • Shine enhancing agents will typically have a refractive index greater than about 1.4, preferably greater than about 1.5 when measured as a film at 25° C.
  • Suitable shine enhancing agents include without limitation, polyols (e.g., glycerin), fatty esters, silicone oils, phenylpropyldimethylsiloxysilicate, polybutene, polyisobutene, hydrogenated polyisobutene, hydrogenated polycyclopentadiene, propyl phenyl silsesquioxane resins; lauryl methicone copolyol, perfluorononyl dimethicone, dimethicone/trisiloxane, methyl trimethicone, and combinations thereof.
  • the composition will comprise a shine-enhancing agent in an amount from about 0.1% to about 10% by weight, more preferably from about 1% to about 5% by weight, based
  • the cosmetic compositions of the invention may optionally include one or more waxes.
  • the one or more waxes can be natural (e.g ., vegetable, animal, or mineral) waxes or synthetic waxes (e.g ., polyolefin, Fisher Tropsch, etc.). Suitable waxes that may be mentioned include, without glyceryl tribehenate, candelilla, carnauba, ozokerite, paraffin, polyethylene, microcrystalline wax, beeswax, ceresin, hydrogenated castor oil, japan wax, and mixtures thereof.
  • the amount of wax is from about 0.1 wt % to about 25 wt % of the total weight of the composition.
  • the amount of wax ranges from about 1% to about 20% by weight based on the total weight of the composition.
  • the composition may comprise wax from about 5% to about 15% by weight based on the weight of the composition.
  • the compositions may be wax free or substantially wax free (e.g., less than 1%, or less than 0.5%, or less than 0.25%, or less than 0.1 % wax by weight of the composition).
  • hydrophobic film-forming polymer will typically refer to a polymer with a solubility in water at 25° C of less than about 1% by weight or one in which the monomeric units of the polymer individually have a solubility in water of less than about 1% by weight at 25° C.
  • a "hydrophobic" film forming polymer will partition predominately into the octanol phase when shaken with a mixture of equal volumes of water and octanol. By predominately is meant more the 50% by weight, but preferably more than 75% by weight, more preferably more than 95% by weight will partition into the octanol phase.
  • Polymeric film formers include polyolefins, polyvinyls, acrylates, alkyl acrylates, polyurethanes, silicones, silicone acrylates, silicone polyurethanes, polyamides, polyimides, polyesters, fluoropolymers, polyethers, polyacetates, polycarbonates, rubbers, epoxys, formaldehyde resins, and homopolymers and copolymers of any of the foregoing.
  • polymeric film formers include silicon-containing polymers, including without limitation, dimethicone, dimethiconol, Amino Bispropyl Dimethicone, Aminopropyl Dimethicone, amodimethicone, Amodimethicone Hydroxystearate, Behenoxy Dimethicone, C 30-45 Alkyl Dimethicone, C 24-28 Alkyl Dimethicone, C 30-45 Alkyl Methicone, Cetearyl Methicone, Cetyl Dimethicone, Dimethoxysilyl Ethylenediaminopropyl Dimethicone, Hexyl Methicone, Hydroxypropyldimethicone, Stearamidopropyl Dimethicone, Stearoxy Dimethicone, Stearyl Methicone, Stearyl Dimethicone, Vinyl Dimethicone, Dimethicon/Polyalkylene Ether crosspolymers and copolymers, such as Dimethicon
  • hydrophilic or water-soluble film former e.g., cellulosics, polysaccharides, polyquaterniums, etc.
  • the collective weight percentage of hydrophilic or water-soluble film formers will be from about 0.001% by weight to less than about 20%, preferably less than about 15%, more preferably less than about 10%, and more preferably still, less than about 5% by weight based on the total weight of the composition.
  • Combinations of any of the foregoing film formers are also contemplated to be suitable, including combinations or polymeric and non-polymeric film formers and/or combinations of hydrophobic and hydrophilic film forming polymers.
  • the film formers when present, typically will comprise from about 0.01% to about 20% by weight of the composition, and more typically from about 0.5% to about 10% by weight of the composition.
  • the cosmetic compositions will typically comprise a physiologically acceptable vehicle.
  • physiologically acceptable is meant that the vehicle is safe for contact with human integuments. It is contemplated that any acceptable vehicle known in the art will be useful.
  • the vehicle may comprise water, hydrophobic organic solvents and/or hydrophilic organic solvents. Suitable hydrophilic solvents include but are not limited to, lower alcohols ( e.g. , C 2 -C 6 alcohols, such as ethanol); and glycols such as butylene glycol, propylene glycol, pentylene glycol, caprylyl glycol, and the like.
  • the vehicle may comprise an oil, including for example, a hydrocarbon oil, ester oil, fatty alcohols and esters, and/or silicone oil.
  • Suitable oils include ester oils, for example, vegetable oils; esters such as octyl palmitate, isopropyl myristate and isopropyl palmitate; ethers include dicapryl ether; fatty alcohols include cetyl alcohol, stearyl alcohol and behenyl alcohol; silicone oils include dimethicones, cyclic silicones, cyclomethicone pentamer, and polysiloxanes; hydrocarbon oils such as mineral oil, petrolatum, isoeicosane and polyisobutene; isoparaffins such as isooctane, isododecane, and isohexadecane, and squalane; additional natural or synthetic waxes; and the like.
  • ester oils for example, vegetable oils
  • esters such as octyl palmitate, isopropyl myristate and isopropyl palmitate
  • ethers include dicapryl ether
  • fatty alcohols include cetyl alcohol,
  • Suitable hydrophobic hydrocarbon oils may be saturated or unsaturated, have an aliphatic character and be straight or branched chained or contain alicyclic or aromatic rings.
  • the oil-containing phase may be composed of a singular oil or mixtures of different oils. Special mention may be made of squalane and isododecane (IDD).
  • Emulsions will typically comprise an amount of emulsifier sufficient to stabilize the emulsion. Suitable emulsifiers are listed in U. S. Patent No. 8,168,640 , .
  • the amount of emulsifier will typically be from about 0.001 wt % to about 20 wt %, but preferably will range from about 0.01 to about 10 wt %, and most preferably about 0.1 wt % to about 5 wt %, based upon the total weight of the composition.
  • the carrier will typically comprise from about 1% to about 99% by weight of the composition, and more typically between about 30% and about 80% by weight. In some embodiments, the carrier comprises between about 50% and about 70% by weight of the composition.
  • the vehicle may be aqueous or anhydrous. By “anhydrous” is meant that no water is intentionally added to the formulation but does not exclude minor amounts of water associated with the other components as impurities. Substantially anhydrous means less than 2.5% by weight water, typically less than 1% by weight water, and more typically, less than 0.5% by weight water, based on the entire weight of the composition.
  • a composition as described herein may also comprise other components that may be chosen depending on the vehicle and/or the intended use of the composition. Additional components include, but are not limited to, antioxidants (e . g ., BHT); oil phase structurants, water phase structurants, gelants ( e . g ., ester terminated polyesteramides, polyamides, dibutyl ethyl hexamoyl glutamide and dibutyl lauroyl glutamide); chelating agents ( e . g ., disodium EDTA and citrate); emulsion stabilizers ( e . g ., carbomer); preservatives ( e .
  • antioxidants e . g ., BHT
  • oil phase structurants e. g ., oil phase structurants
  • water phase structurants e. g ., ester terminated polyesteramides, polyamides, dibutyl ethyl hexamo
  • retinoids include, without limitation, retinoic acid (e . g ., all-trans or 13-cis) and derivatives thereof, retinol (Vitamin A) and esters thereof, such as retinyl palmitate, retinyl acetate and retinyl propionate, and retinal.
  • An emollient provides the functional benefits of enhancing skin smoothness and reducing the appearance of fine lines and coarse wrinkles.
  • examples include isopropyl myristate, petrolatum, isopropyl lanolate, silicones (e.g., methicone, dimethicone), oils, petrolatum, mineral oils, fatty acid esters, cetyl ethylhexanoate, C 12-15 alkyl benzoate, isopropyl isostearate, diisopropyl dimer dillinoeate, or any mixtures thereof.
  • emollients include jojoba oil, lanolin oil, coconut oil, palm kernel glycerides, grape seed oil, evening primrose oil, sesame oil, castor oil, meadowfoam seed oil, emu oil, dimethicone copolyol meadowfoamate, wheat germ oil, macadamia nut oil, avocado oil, and mixtures thereof.
  • the emollient may be present from about 0.1 wt % to about 50 wt % of the total weight of the composition. More typically, emollients will be present in an amount from about 2 wt % to about 15 wt %, preferably, about 5 wt %.
  • Suitable exfoliating agents include, for example, alpha-hydroxyacids, beta-hydroxyacids, oxaacids, oxadiacids, and their derivatives such as esters, anhydrides and salts thereof.
  • Suitable hydroxy acids include, for example, glycolic acid, lactic acid, malic acid, tartaric acid, citric acid, 2-hydroxyalkanoic acid, mandelic acid, salicylic acid and derivatives thereof.
  • an exfoliating agent is glycolic acid.
  • the exfoliating agent may comprise from about 0.1 wt % to about 20 wt % of the composition.
  • Antioxidants scavenge free radicals from skin, protecting the skin from environmental aggressors.
  • antioxidants include compounds having phenolic hydroxy functions, such as ascorbic acid and its derivatives/esters; alpha-hydroxyacids; beta-carotene; catechins; curcumin; ferulic acid derivatives (e.g. ethyl ferulate, sodium ferulate); gallic acid derivatives (e.g., propyl gallate); lycopene; reductic acid; rosmarinic acid; tannic acid; tetrahydrocurcumin; tocopherol and its derivatives (e.g., tocopheryl acetate); uric acid; or any mixtures thereof.
  • phenolic hydroxy functions such as ascorbic acid and its derivatives/esters; alpha-hydroxyacids; beta-carotene; catechins; curcumin; ferulic acid derivatives (e.g. ethyl ferulate, sodium ferulate); gall
  • compositions of the present invention may comprise an antioxidant in one embodiment from about 0.001 wt % to about 10 wt %, and in one embodiment from about 0.01 wt % to about 5 wt %, of the total weight of the composition.
  • vitamins such as tocopherol and ascorbic acid and esters thereof; vitamin derivatives such as tocopherol acetate and ascorbyl palmitate; thickeners such as hydroxyalkyl cellulose; gelling agents; structuring agents such as bentonite, smectite, magnesium aluminum silicate and lithium magnesium silicate; metal chelating agents such as EDTA; pH adjusters (including NaOH, KOH, trialkyl amines, citric acid, phosphoric acid, hydrochloric acid, ammonium chloride, etc.)
  • a composition comprising organic sunscreen, nylon, silica, and barium sulfate may be used in any type of hair treatment, lip product, skin treatment or makeup product.
  • Such makeup products may include, but are not limited to, foundations, blushes, concealers, bronzers, eyeshadows, and eyeliners.
  • Lip products include without limitation lipsticks, lip colors, lip balms, and lip glosses.
  • a composition as described herein is in the following form of, aqueous systems, hot pour systems, emulsions, gels, sticks, sprays, There is essentially no limitation on the type of vehicle that may be employed although it should be physiologically acceptable for contact with a human integument.
  • compositions of the present invention are also encompassed by the invention.
  • the compositions are applied to a human integument, such as the skin of the face, hands, body, or lips.
  • Compositions 1-22 were prepared according to base formula of Table 1.
  • the nylon, silica, and barium sulfate were either absent or present in the indicated amount depending on the sample, as shown in Tables 2-4.
  • the Nylon particles were porous nylon-6 particles treated with hydrogen dimethicone (POMP 605-S101 from UBE Industries).
  • the silica particles were spherical silica available from Kobo Products as MSS-500W.
  • Barium sulfate particles were either "USP Barium Sulfate for Formulation" from Mallinckrodt Inc or "Blanc Fixe XR-HN” from Sachtleben Chemie GmbH.
  • Phase A Phase A
  • Phase C Phase D ingredients were combined and mixed until uniform, then added to pre-melted waxes of Phase B.
  • Phase E was then added, mixed until uniform, and cooled.
  • Diffuse transmittance was measured on the X-rite Color i7 Spectrophotometer. Samples were prepared by making drawdowns of 3 mL film thickness of each composition on glass plates. The samples were allowed to sit for 4 hours before measurements were taken. Total transmittance was measured along with direct transmittance. Diffuse transmittance is calculated by taking the difference between the two measurements.
  • Samples #11-14 were prepared to assess the role of each of the three components (barium sulfate, nylon, and silica) in enhancing SPF of an organic sunscreen.
  • Sample #11 contained 7.5% OMC, 0.50% silica-coated iron oxide, 5% nylon and 2.5% silica, without barium sulfate.
  • Sample #12 contained 7.5% OMC, 0.50% silica-coated iron oxide, and 5% nylon, without silica and barium sulfate.
  • Sample #13 contained 7.5% OMC, 0.50% silica-coated iron oxide, and 2.5% silica, without nylon and barium sulfate.
  • Sample #14 contained 7.5% OMC, 0.50% silica-coated iron oxide, and 5% barium sulfate, without nylon and silica. Samples #11-14 were evaluated for SPF and diffuse transmittance according to the procedure above. The data is summarized below, along with sample #9 (containing all three components) for comparison.
  • Sample #9 (containing nylon, silica, and barium sulfate), gave an SPF of 35.69.
  • Samples #11-14 which lack one or more of the three components, gave SPF values ranging from 22-24.
  • the striking increase of SPF by more than 10 SPF units for sample #9 is greater than an additive effect of each of the three components, demonstrating a synergy of nylon, silica, and barium sulfate when used together to boost SPF of an organic sunscreen.
  • Samples #15-22 were prepared to study the effect of the three-component system with other organic sunscreens, namely, homosalate and octyl salicylate.
  • Table 4 15 16 17 18 19 20 21 22 OMC + + - - + + + - - Homosalate + + + + + - - - - Octyl salicylate - - - - + + + + + Nylon + - + - + - + - Silica + - + - + - + - Barium Sulfate + - + - + - + - + - Iron Oxide, silica-coated + + + + + + + + + + + SPF 28.33 22.63 12.21 7.72 24.63 21.40 12.65 9.44 Diffuse Transmittance 52.93 40.03 54.83 38.23 54.13 40.07 55.26 39.16
  • Octyl salicylate (5%) or homosalate (5%), were added with or without OMC to the samples with or without nylon, silica, and barium sulfate. Comparing sample #15 to #16, #17 to #18, #19 to #20, and #21 to #22, the in vitro SPF is higher in all samples containing nylon, silica, and barium sulfate vs. their respective controls without the three components, indicating that the combination boosts SPF of other organic sunscreens.
  • Samples #23 and #24 were prepared to study the effect of the three-component system in an oil-in-water emulsion formulation.
  • the samples were prepared according to the formula of Table 5.
  • the nylon, silica, and barium sulfate were either absent or present in the indicated amount, as shown in Table 6.
  • the Nylon particles were porous nylon-6 particles treated with hydrogen dimethicone (POMP 605-S101 from UBE Industries).
  • the silica particles were spherical silica available from Kobo Products as MSS-500W.
  • Barium sulfate particles were either "USP Barium Sulfate for Formulation" from Mallinckrodt Inc or "Blanc Fixe XR-HN" from Sachtleben Chemie GmbH.
  • the in vitro SPF was about 20% higher in sample #23 (SPF of 37.0), which contained nylon, silica, and barium sulfate, as compared to the control sample #24 without the three components (SPF of 31.2), indicating that the SPF-boosting combination is effective in oil-in-water emulsion formulations.
  • Barium sulfate particles were either "USP Barium Sulfate for Formulation” from Mallinckrodt Inc or "Blanc Fixe XR-HN” from Sachtleben Chemie GmbH. Samples #25-27 contained 7.5% ethylhexyl-methoxycinnamate (OMC) and 0.5% silica-coated red iron oxide. The preparation and testing procedures were identical to those of Example 1. Table 7 Ingredient Percent Castor Oil q.s.

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Claims (14)

  1. Zusammensetzung, umfassend ein organisches Sonnenschutzmittel und eine LSF-verstärkende Zusammensetzung in einer der folgenden Formen:
    ein wässriges System, ein Heißgießsystem, eine Emulsion, ein Gel, ein Stift, ein Spray,
    umfassend:
    (i) Nylon-Partikel;
    (ii) Siliciumdioxidpartikel; und
    (iii) Bariumsulfatpartikel,
    wobei die LSF-verstärkende Zusammensetzung eine Erhöhung des LSF im Vergleich zu einer ansonsten identischen Kombination, der eine der drei Komponenten (i)-(iii) fehlt, bereitstellt; wobei die Nylonpartikel 1 bis 10 Gew.-% der Zusammensetzung umfassen; die Siliciumdioxidpartikel 0,5 bis 5 Gew.-% der Zusammensetzung umfassen; und die Bariumsulfatpartikel 1 bis 10 Gew.-% der Zusammensetzung umfassen.
  2. Zusammensetzung nach Anspruch 1, wobei das Gewichtsverhältnis der Komponenten (i) zu (ii) bis (iii) 2:1:2 beträgt.
  3. Zusammensetzung nach Anspruch 1, wobei die Nylonpartikel mit Wasserstoffdimethicon oberflächenbehandelt sind.
  4. Zusammensetzung nach Anspruch 1, wobei die Nylonpartikel poröse Nylon-6-Partikel umfassen.
  5. Zusammensetzung nach Anspruch 1, wobei die Nylonpartikel poröse Nylon-6-Partikel umfassen, die mit Wasserstoffdimethicon oberflächenbehandelt sind.
  6. Zusammensetzung nach Anspruch 1, wobei die Siliciumdioxidpartikel kugelförmig sind.
  7. Zusammensetzung nach Anspruch 1, die ferner ein Pigment enthält.
  8. Zusammensetzung nach Anspruch 7, wobei das Pigment Eisenoxid ist.
  9. Zusammensetzung nach Anspruch 8, wobei das Eisenoxid mit Siliciumdioxid beschichtet ist.
  10. Zusammensetzung nach Anspruch 1, wobei die Verstärkung des LSF mindestens 10 % beträgt.
  11. Zusammensetzung nach Anspruch 1, wobei das organische Sonnenschutzmittel aus Ethylhexylmethoxycinnamat, Homosalat, Octylsalicylat, Oxybenzon, Octocrylen und Avobenzon ausgewählt ist.
  12. Zusammensetzung nach Anspruch 1, wobei die Zusammensetzung einen diffusen Transmissionsgrad von mindestens 40 erreicht.
  13. Zusammensetzung nach Anspruch 1, wobei die Zusammensetzung eine Öl-in-Wasser-Emulsion umfasst.
  14. Zusammensetzung zur Verwendung in einem Verfahren zum Schutz einer menschlichen Haut gegen UV-Schädigung, umfassend das Aufbringen einer Zusammensetzung, wie sie in Anspruch 1 definiert ist, auf die Haut.
EP15782509.2A 2014-04-24 2015-03-04 Sonnenschutzzusammensetzungen Active EP3134185B1 (de)

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US14/260,775 US9173830B1 (en) 2014-04-24 2014-04-24 Sunscreen compositions
PCT/US2015/018579 WO2015163980A1 (en) 2014-04-24 2015-03-04 Sunscreen compositions

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CN106061559B (zh) 2019-10-25
MX369223B (es) 2019-10-31
US20150306017A1 (en) 2015-10-29
MX2016012559A (es) 2016-12-14
BR112016024603A2 (pt) 2017-08-15
WO2015163980A1 (en) 2015-10-29
US20160015624A1 (en) 2016-01-21
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CA2946715A1 (en) 2015-10-29
CN106061559A (zh) 2016-10-26

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